Sub-wavelength metasurfaces offer opportunities to develop efficient stealth technologies that are increasingly significant in modern civil and military applications. Here, we demonstrate that a highly efficient flexible graphene-based composite sub-THz radiation absorber can also act as an ultra-low reflection material with reflectivity as low as 0.12%.
View Article and Find Full Text PDFHaemodialysis facilities have a large environmental impact due to high energy, water and consumable usage by haemodialysis equipment. As climate change and natural resource scarcity escalate, all the while the number of people requiring dialysis increases, there is an urgent need for dialysis facilities that meet care needs while minimising environmental impact. To address this, the Australian and New Zealand Society of Nephrology engaged an environmental sustainability consulting practise to develop a best practise guide for the environmentally sustainable design and operation of haemodialysis facilities.
View Article and Find Full Text PDFOff-axis projection is a common practice for reconstructions of Fourier holograms displayed on liquid crystal on silicon (LCoS) spatial light modulators (SLMs), as it spatially separates the image from the undiffracted light. Binary gratings encoded within the holograms enable maximum angular separation. However, as a result, two mirror images of equal intensities are present in the reconstruction.
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